<template>
    <el-aside width="200px" class="image-aside" v-loading="loading">
        <div class="top">
            <AsideList :active="activaId == item.id" v-for="(item, index) in list" 
            :key="index" 
            @edit="handleEdit(item)"
            @delete="handleDelete(item.id)"
            @click="handleChangeActiveId(item.id)">
                {{ item.name }}
            </AsideList>
        </div>
        <div class="bottom">
            <el-pagination background layout="prev, next" :total="total" :current-page="currentPage" :page-size="limit"
                @current-change="getData" />
        </div>

    </el-aside>
    <FormDrawer :title="drawerTitle" ref="formDrawerRef" @submit="handleSubmit">
        <el-form :model="form" ref="formRef" :rules="rules" label-width="80px" :inline="false">
            <el-form-item label="分类名称" prop="name">
                <el-input v-model="form.name"></el-input>
            </el-form-item>

            <el-form-item label="排序" prop="order">
                <el-input-number v-model="form.order" :min="0" :max="1000" />
            </el-form-item>
        </el-form>


    </FormDrawer>
</template>

<script setup>
import { ref, reactive, computed } from "vue"
import FormDrawer from './FormDrawer.vue'
import { 
    getImageClassList, 
    createImageClass,
    updateImageClass,
    deleteImageClass
 } from "@/api/image_class.js"
import AsideList from './AsideList.vue'
import { toast } from "@/composables/util.js"

// 加载动画
const loading = ref(false)
const list = ref([])


// 分页
const currentPage = ref(1)
const total = ref(0)
const limit = ref(10)



// 获取数据
function getData(p = null) {
    if (typeof p == "number") {
        currentPage.value = p

    }
    loading.value = true
    getImageClassList(currentPage.value)
        .then(res => {
            total.value = res.totalCount
            list.value = res.list
            let item = list.value[0]
            if (item) {
                handleChangeActiveId(item.id)
            }
        })
        .finally(() => {
            loading.value = false
        })

}


getData()


const editId= ref(0)
const drawerTitle = computed(()=>editId.value ? "修改" : "新增")

const formDrawerRef = ref(null)


const form = reactive({
    name: "",
    order: 50
})

const rules = {
    name: [
        {
            required: true,
            message: '图库分类名称不能为空',
            trigger: 'blur'
        }
    ]
}

const formRef = ref(null)

const handleSubmit = () => {
    formRef.value.validate((valid) => {
        if (!valid) return

        formDrawerRef.value.showLoading()

        const fun = editId.value ? updateImageClass(editId.value,  form) :createImageClass(form)
        fun.then(res=>{
            toast(drawerTitle.value +  "成功")
            getData(editId.value ? currentPage.value :1)

            formDrawerRef.value.close()
        })
        .finally(()=>{
            formDrawerRef.value.hideLoading()
        })
    })
}

// 新增
const handleCreate = () => {
    editId.value = 0
    form.name = ""
    form.order = 50
    formDrawerRef.value.open()
}


// 编辑
const handleEdit=(row) =>{
    editId.value = row.id
    form.name = row.name
    form.order = row.order
    formDrawerRef.value.open()

}

// 删除
const handleDelete=(id)=>{
    loading.value = true
    deleteImageClass(id)
    .then(res=>{
        toast("删除成功")
        getData()

    })
    .finally(()=>{
        loading.value = false
    })
     
}

// 选中图库分类ID
const activaId = ref(0)

const emit = defineEmits(["change"])  // 和父组件进行通信
// 切换分类
function handleChangeActiveId(id){
    activaId.value = id
    emit("change", id)

}


defineExpose({
    handleCreate
})


</script>


<style scoped>
.image-aside {
    border-right: #eeeeee solid 1px;
    position: relative;
}


.image-aside .top {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 50px;
    overflow-y: auto;
}

.image-aside .bottom {
    position: absolute;
    bottom: 0;
    height: 50px;
    left: 0;
    right: 0;
    @apply flex items-center justify-center;

}
</style>